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iff/507m? I JWM, 555.

UNITED STATES PATENT OFFICE.

FRANCOIS CARR, OF PARIS, FRANCE.

BED-BOTTOM.

Specification forming part of Letters Patent No. 50,883, dated November 7, 1865.

hereby declare that the following is afull and l exact description thereof, so as to enable others skilled in the art to make and use my invention.

The natureof my invention consists in so constructing a spring bed-bottom as to coinbine simplicity ot'construction with a veryconsiderable elasticity.

In the accompanying drawings, Figure l is a top, Fig. 2, a bottom, View; Fig. 3, a longitudinal, and Fig. 4 a transverse, section of a bedbottom constructed in accordance with this my invention.

In the said drawings, A B C D represent the frame of the spring bed-bottom, strengthened by means of T-shaped iron bars E F G H IK. Strips of steel L pass at both extremities through corresponding Inortises in the frame, and are strengthened at their ends by pieces a Z1 c b', attached thereto. A at bar, M, traverses the Whole length of the bed-bottom, restingon the strips L, and riveted to the latter.

The bar M is fastened to the frame in the saine manner as the strips L are.

Additional bars S may pass from strip L to strip L on both sides of the rod M.

NN are additional strips on the ends ot' the bed-bottom.

Fig. 5 represents a modification in the Inode of supporting the steel strips, bycontining the vends thereof Within the frame by means of a projecting {ia-nge, L.

Fig. 6 represents the construction ofthe apparatus in case the frame is Inade ot' Wood.

The strips may thus be riveted or bolted to the outside, or be arranged as indicated at m on the inside.

Having described my invention, what I de.- sire to secure by Letters Patent, and what I claim as new, is-

The spring bed-bottom constructed in the manner and for the purpose above described. Witnesses: CARR.

G. MAURICE,

E. SAY. 

